The first day of the Knoxville Nationals should begin warm and sunny as the high today reaches 80 degrees, about normal for this time of year. Humidity should not be as much as a factor as it has been recently with dew points only reaching the upper 50’s to low 60’s (keep in mind noticeable humidity begins about 65 degrees.) Mostly Sunny skies should transition to Partly Cloudy skies overnight with the low being 59. Forecast grade for the day is an A.

Knoxville Nationals special event forecasts continue through the 10th with the Iowa State Fair special event forecasts beginning tomorrow. Enjoy the day!